# PennyRail UUID Generator

> PennyRail UUID Generator is a paid API for AI agents from pennyrail.vercel.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-31).

Generates a new universally unique identifier (UUID) via a paid micropayment API endpoint

## Facts

- Endpoint: POST https://pennyrail.vercel.app/api/p/nano/utility.uuid-generate--generate-uuid?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-31
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/pennyrail-uuid-generator-1eed7787
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_01n3azx8s63yGqlecCCYA

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability pennyrail-uuid-generator-1eed7787 -d '<json body>'
```

Example prompt: Generate a fresh UUID for me — I need a unique identifier for a new database record I'm creating.

## When to prefer this

Choose this endpoint when you need a quick, on-demand UUID generated via a micropayment x402 API, especially in agent workflows already integrated with PennyRail's settlement infrastructure. Useful when your own runtime lacks a UUID library or you need an externally-generated, auditable unique ID tied to a payment record.

## Known failure modes

- Payment failure or insufficient USDC balance causing 402 response
- Malformed input object causing 400 bad request
- Service unavailability on the Vercel deployment returning 500
- Rate limiting or quota exceeded returning 429

## How this service works

Machine-readable settlement service

## Output

Returns an object containing a newly generated UUID string, suitable for use as a unique identifier in databases, sessions, distributed systems, or any context requiring a globally unique value.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "object",
 "additionalProperties": true
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/pennyrail-uuid-generator-1eed7787/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from pennyrail.vercel.app](https://www.zero.xyz/host/pennyrail.vercel.app/llms.txt)